Heel-covering machine



Oct. 19, 1937. L4, BAZZON, 2,095,962

HEEL COVERING MACHI NE Filed April 9, 1956 Patented Oct. 19, 1937 UNITED STATES PATENT. OFFHQE United Shoe Machinery Corporation, Paterson,

N. J., a corporation of New Jersey Application April 9, 1936, Serial No. 73,508

12 Claims.

This invention relates to the manufacture of shoes and is illustrated as embodied in a machine for applying to wood heels the projecting margins of covers attached to the heels.

In covering Louis heels, for example, it is oustomary to apply to the rear and side faces of the heel a single piece of covering material which is commonly known as a side cover and the inner face of which is usually coated with adhesive. The side cover which projects beyond the attaching, the breast and the top-lift receiving faces of the heel then has its projecting margins inturned upon and secured to the respective faces. In order to insure an effective bond between the heel-breast covering flap of the shoe and the margins of the side cover which have been inturned upon the heel breast, and also to insure that the transverse curvature of the breast of the finished heel shall be smooth, it is customary to skive the front projecting margins of the cover to a feather edge either before or after they are secured to the heel breast. also desirable, although not so common, to skive to a feather edge the top projecting margin of the cover which is inturned upon the attaching face of the heel, thereby facilitating the proper attachment of the heel to the shoe. The projecting margins should be laid smoothly upon the respective faces and should also be forced against the heel with considerable pressure in orderthat they shall be securely attached to the heel. Such an operation, when performed by hand, requires considerable time since the projecting margins, especially if they have not tendency to bunch when applied to certain portions of the heel. Moreover, it has been found that when the projecting margins are applied'to the heel by hand the adhesive on the inside face of the cover frequently is pressed out beyond the edge of the margin with the result that some of the adhesive sticks to the hands of the operator. Such a condition is objectionable since it is then diflicult for the operator to handle the heel without depositing the adhesive upon the outside face of the heel cover.

It is an object of the present invention to provide a simple machine by the use of which the operator may quickly and effectively apply to heels the projecting margins of covers which have already been attached to the side and rear faces of the heels. With the above object in View, and in accordance with a feature of this invention, there is provided a machine comprising a laying tool, and mechanism for guiding a heel having an attached cover a margin of which projects beyond been skived, have a the heel, past the tool in a predetermined path, the tool being constructed and. arranged to deliver against the margin of the cover a series of strokes each of which progresses toward the edge of the margin whereby to lay the margin against 5 the heel as the heel and its attached cover are guided past the tool by said mechanism.

In the illustrated machine the tool for laying -or wiping the projecting margin of the cover upon the heel is of the rotary type and comprises 10 circumferentially spaced wiping ridges which are skewed. One of the gages of the guiding mechanism is rotatable about an axis lying approximately in the general plane of rotation of the tool. The heel-engaging portion of the other 15 gage is positioned immediatelyin advance of the tool and adjacent to the path of movement of the margin laying'ridges of the tool. The rotary gage comprises a rigid circular flange which forms with a ring of resilient material of the gage, an annular groove for receiving an edge portion of the heel. "The annular groove of the rotary gage is so constructed iand'arranged that as it is engaged by the heel it bends the projecting margin of the cover about an adjacent edge of the heel. 25 As the work is guided by the gages past the tool continuations of the cover-applying ridges of the tool bend the projecting margin toward the heel preparatory to presenting the margin to the skewed ridges and thus wiping the margin se- 30 curely against the heel.

By the use of the above machine the operator can apply the projecting margins of attached covers of heels to the heels quicker and more effectively than has heretofore been possible by 5 hand or by other machines which have been proposed for this purpose.

These and other features of the invention will be described as embodied in an illustrated machine and pointed out in the appended claims.

In the drawing,

Fig. 1 is a front view .chine;

Fig. 2 is a side elevation, partly in section, of the machine;

Fig. 3 is a perspective view showing the machine in the process of applying to the attaching face of a heel a projecting margin of a side cover attached to the heel;

Fig. 4 is a detail view showing the relative po- 50 sitions of portions of the machine and the heel during the application of the projecting margin of the attached cover to the attaching face of the heel; and

Fig. 5 is a perspective View of a heel the proof the illustrated majecting margins of the side cover of which have been applied to the heel by the use of the above machine.

The top and the front projecting margins I0, l2 of side covers l4 of Louis heels I6 are commonly inturned upon and secured to the attaching and the breast faces I8, 20, respectively, of the heel. The illustrated machine is described with reference to applying the top projectin margin H] of the side cover I4 of the heel to the attaching face l8 of the heel, and comprises a rotary laying or wiping tool 22, a rotary edge gage 24, and a front gage 26, the gagesbeing constructed and arranged to guide the heel and its cover past the tool in order to lay the projecting margin upon the attaching face 18. The illustrated top and front projecting margins I0, 12, respectively, of the side cover, for reasons above explained, are preferably skived before being laid upon the heel, by the machine disclosed in United States Letters Patent No. 2,029,304, granted February 4, 1936 on an application filed in my name. The illustrated cover-laying machine may be conveniently mounted upon the base of the skiving machine disclosed in the above United States Letters Patent in order that the operator, during one handling of the heel, may skive the projecting margins and then apply the skived margins to the heel. It will be understood that the bottom projecting margin of the cover (not shown) is inturned upon the top-lift receiving face of the heel by the illustrated machine but is not skived.

The rotary laying tool 22 comprises a series of circumferentially spaced laying or wiping ridges 28 which are skewed, and folding ridges 30 which are continuous with the wiping ridges 28. The folding ridges 30 bend the projecting margin I6, which as will be later explained has already been folded around the rim of the attaching face of the heel by the rotary gage 24, toward the attaching face I8 of the heel preparatory to causing the skewed ridges 28 to'wipe the projecting margin In securely against the attaching face IS. The cover of the illustrated heel has a narrow projecting margin H! which has been skived, and in this case the action of the folding ridges is not so marked as it is with heels the covers of which have wider unskived projecting margins. The tool 22 is secured to a shaft 32 (Fig. 2) mounted for rotation in a bearing 34 of the machine frame. Secured to the rear end of the shaft 32 is a helical gear 36 which meshes with a gear 38 mounted upon a drive shaft 39 (Fig. 3).

The edge gage 24 comprises a disk 4|] of rigid material which, together with a circular plate 42 secured to the disk by a plurality of screws 44, forms a recess 46 constructed and arranged to receive an annulus or ring 48 of resilient material. The disk and the annulus 48 form a circular groove 5|] (Fig. 4) constructed and arranged to be engaged by the rim of the attaching face of the heel. It will be noted that, as the heel engages the groove 50 so as to be guided past the tool 22, the disk 40 progressively folds the projecting margin ID of the cover around the rim of the attaching face 18 of the heel. With such a construction the cover is' effectively forced against portions of the heel which are located adjacent to the rim of the attaching face of the heel. The gage 24 is supported upon a bearing 52 which is eccentrically mounted upon and secured by a nut 54 to a bracket 56. The bracket 56 may be adjustably secured to the frame of the machine through a screw-and-slot connection 58.

The rotary edge gage 24 may be described as being rotatable about an axis arranged approximately in the plane of rotation of the laying tool 22. The work-engaging portion 68 of the stationary gage 26 is positioned in front of and adjacent to the path of movement of the Wiping ridges 28 and also lies approximately in the plane of rotation of the edge gage 24. A rearwardly extending shank 62 of the gage 26 fits within a recess of a depending portion 64 of the machine frame and is secured in adjusted position with relation to the frame through the provision of a screw 66. As the heel guided by gages 22, 24 is rotated in the direction indicated by arrow 68 (Fig. 3) and is moved rearwardly into engagement with the groove 50 of the edge gage 24, the projecting margin (8 of the cover, which is forced against the rim of the attaching face of the heel and is folded toward the attaching face by the gage 24, is further inturned toward the attaching face by the folding ridges 39 of the tool 22 and is then effectively forced against the attaching face of the heel by the wiping ridges 28. Since the wiping ridges 28 are skewed they feed the margin In in the general direction of feed of the heel past the tool 22 and thus eliminate the tendency of the projecting margin to bunch immediately in advance of the tool. The strokes of the wiping ridges 28 progress toward the edge of the margin ID as the heel and its cover are guided past the heel 22. The localities at which the wiping edges engage the margin l0 progress lengthwise of the margin as the heel and its attached cover are guided by the gages 24, 26 past the tool 22.

Having described the invention, what I claim 1;

as new and desire to secure the United States is: a

1. In a covering machine, a rotary tool, and a plurality of gages which are constructed and arranged to be engaged by angularly related faces respectively of a heel having an attached cover by Letters Patent of projecting beyond oneof said faces to guide the projecting margin of the .cover past the tool, said tool being constructed and arranged to lay said projecting margin of of the heel as the heel is guided past the tool.

2. In a covering machine, a rotary wiping tool, and means for guiding a heel having an attached cover a margin of which extends beyond an edge of the heel past the tool, said tool and said means being so constructed and arranged that the plane of rotation of the tool is disposed at substantially right angles to an adjacent portion of the edge of the heel as the tool applies the projecting margin of the cover to the heel.

3. In a covering machine, a wiping tool, means for guiding a heel having an attached cover the margin of which projects beyond a face of the heel past the tool, said tool comprising one or more rigid elements movable in a predetermined path, and means for operating said tool to cause said one or more elements of the same to deliver a series of strokes against said margin to lay the margin against the heel, each of said strokes progressing toward the edge of the margin as the heel and its cover are guided past the tool by said means.

4. In a covering machine, a rotary tool comprising a plurality of wiping ridges, and spaced gages constructed and arranged to guide a heel having an attached cover a margin of which extends beyond the heel past the tool, and means for rotating the tool in a direction to cause the projecting margin of the cover to be laid against the cover upon said one face the heeel by a series of wiping strokes each of which progresses toward the edge of the margin.

5. In a covering machine, a rotatable tool, spaced gages for guiding a heel having an attached cover a margin of which projects beyond a face of the heel past the tool, and means for rotating the tool, said tool comprising a plurality of rigid elements which are circumferentially arranged and are constructed and arranged to force said margin against the heel by a succession of wiping strokes each of which is disposed at substantially right angles to an adjacent edge of the margin as the heel is guided past the rotating tool, the localities at which the Wiping strokes engage the margin progressing lengthwise of the margin as the heel and its attached cover are guided by said gages past the tool.

6. In a covering machine, a rotary tool, and a plurality of gages which are constructed and arranged to be engaged by angularly related faces respectively of a heel having an attached cover projecting beyond one of said faces and which guide the projecting margin of the cover past the tool, said tool having a plurality of skewed Wiping ridges constructed and arranged to lay the projecting margin of the cover upon said one face of the heel and to prevent the bunching of the cover in advance of the tool as the heel and its cover are fed past the same.

7. In a covering machine, a rotary laying tool, a rotary gage having a circular groove constructed and arranged to be engaged by a covered edge of a heel and to fold a projecting margin of a cover secured to the heel around said edge, and a gage arranged to be engaged by a face of the heel beyond which said margin of the cover projects, said gages being constructed and arranged to guide the heel and the projecting margin of the cover past the too], said tool being constructed and arranged to lay said projecting margin of the cover upon said face of the heel as the heel is guided past the tool.

8. In a heel-covering machine, a laying tool, a gage which is rotatable about an axis arranged approximately in the plane of rotation of the tool and which is positioned adjacent to the tool, and a gage positioned in front of and adjacent to said tool and having a work-engaging face arranged approximately in the plane of rotation of the first-named gage.

9. In a covering machine, a rotary laying tool, a rotary gage positioned adjacent to the tool and having its axis of rotation disposed at a substantial angle to the axis of rotation of said tool, and

a gage positioned in front of and adjacent to the work-engaging portion of the tool, said rotary gage having a peripheral groove.

10. In a heel-covering machine, a rotary laying tool comprising a plurality of circumferentially spaced wiping ridges which are skewed, a rotatable gage positioned adjacent to the tool and having its axis of rotation disposed at a substantial angle to the axis of rotation of said tool, and a gage positioned in front of and adjacent tothe path of movement of the ridges of the tool, said rotary gage comprising a rigid circular member and an annulus of resilient material forming with said rigid member a workreceiving groove.

, 11. In a heel-covering machine, a rotary tool comprising a plurality of circumferentially spaced wiping ridges, a gage provided with a groove constructed and arranged to be engaged by the rim of the attaching face of a heel and to fold the margin of a cover which is attached to the heel and projects beyond the attaching face of the heel toward said face, and means for operating the tool to cause the same to lay the projecting margin of the cover folded over the attaching face of the heel against said face as the heel is guided by said gage past the tool.

12. In a heel-covering machine, a rotary tool comprising a plurality of circumferentially spaced wiping ridges, a rotary gage provided with a groove constructed and arranged to be engaged by the rim of the attaching face of the heel and to fold a margin of a cover which is attached to the heel and projects beyond the attaching face of the heel toward said face, and means for operating the tool to cause the same to lay the projecting margin of the cover against the attaching face of the heel by a series of strokes each of which progresses toward the edge of the margin as the heel and its cover are guided past the tool by the gage.

LEWIS J. BAZZONI. 

